lmdb-dbg 0.9.17-1 (armhf binary) in ubuntu xenial

 This package provides the detached debug symbols for the LMDB libraries
 and utilities.
 .
 Lighting Memory-Mapped Database (LMDB) is an ultra-fast, ultra-compact
 key-value embedded data store developed for the OpenLDAP Project. It uses
 memory-mapped files, so it has the read performance of a pure in-memory
 database while still offering the persistence of standard disk-based
 databases, and is only limited to the size of the virtual address space, (it
 is not limited to the size of physical RAM).